What’s an Ultrasound, and Why Might Your Doctor Order One?

If your doctor at McCamey County Hospital says you need an ultrasound, don’t worry — it’s not scary, and it doesn’t hurt. In fact, ultrasounds are one of the easiest and safest ways to get a look inside your body when something’s bothering you.

You might’ve heard about ultrasounds from friends who were pregnant — but they’re not just for that. We use ultrasounds all the time to check things like your gallbladder, liver, thyroid, kidneys, and even your heart or veins.

“Think of an ultrasound like a peek under the hood,” said Tabitha Fierro, medical radiologic technologist at McCamey County Hospital District. “It helps us see what’s going on inside your body — without cutting, poking, or using radiation.”

So, What Happens During an Ultrasound?

Here’s what you can expect:

You’ll lie down in a quiet room while one of our trained techs — called a sonographer — does the scan.

They’ll put a warm gel on the skin where they need to check (like your belly, chest, or neck).

Then they’ll move a small device called a probe across that area.

The probe sends sound waves into your body, and those waves bounce back to create a picture on a screen.

That picture helps your doctor know what’s going on inside.

No needles. No pain. No downtime. Most people are in and out in less than an hour.

Do I Need to Do Anything Before the Test?

Sometimes, yes. It depends on what we’re looking at.

If it’s your gallbladder or liver: You’ll need to avoid eating for 6–8 hours before your scan so we get a clear picture.

If it’s your bladder or kidneys: We might ask you to drink water beforehand, so your bladder is full.

Your provider or nurse will let you know exactly what to do when your test is scheduled.

“We keep it simple,” added Fierro. “If you need to fast or drink water ahead of time, we’ll make sure you know. You don’t have to figure it out on your own.”

What Happens After?

You can go straight home afterward — no driving restrictions and no recovery needed. Once the scan is done, a radiologist (a doctor who reads images) will look at it and send a report to your provider, who will go over the results with you.

Sometimes the ultrasound gives a clear answer, and other times it helps decide what to check next. Either way, it’s usually the first and easiest step to figuring out what’s going on.